Tire tread



FIG. 1 is a perspective view of a tire tread, it being understood that the pattern is repeated uniformly throughout the circumference of the tread;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a side elevational view thereof; and,

FIG. 4 is an enlarged fragmentary view thereof.

The dark stippled shading in FIG. 1 represents grooves in the tread surface, having a depth as best defined in FIG. 2. 

The ornamental design for a tire tread, as shown and described. 